A pair of images from NASA’s Cassini spacecraft show Titan glowing in the dark. Titan never ceases to amaze. Saturn’s largest moon, it’s wrapped in a complex, multi-layered nitrogen-and-methane atmosphere ten times thicker than Earth’s. It has seasons and weather, as evidenced by the occasional formation of large bright clouds and, more recently, an area … Continue reading "Cassini Discovers Titan’s Glowing Atmosphere"